Pitch Pipes
Pitch Pipes, 8 free reeds, mounted as two sets of four (G,C,E,G opposed to F,H,D,F) in ivory, either side of nickel plates and tortoiseshell centre plate, intended to mount in the manner of a mouth organ on a male threaded stand, from the Wheatstone Laboratory Collection and Concertina Museum Collection (C506, not labelled)
